• (4) Replacement pre-filters for Narrow Fan Filter Units
  • Pre-filters are an essential feature, prolonging the life of the HEPA/ULPA filter
  • Captures larger particles that would otherwise abuse and quickly wear out the HEPA/ULPA filter
  • MERV 7 general purpose pleated air filters provide between 50% - 69% efficiency for filtering particles between 3 - 10 microns in size (such as mold spores and dust). Suitable for dusty, commercial and industrial workspaces.
  • High strength frame constructed of virgin materials obtained in compliance with forest practices consistent with standards set forth by the Sustainable Forest Initiative (SFI).


Size: 14" x 19.5"

Filter Frame Material: Paper

Filter Type: MERV 7 Pre-Filter

Unit of Measure: BOX of 4 EA


Weight, Product: 11 lb

Dimensions, Product: 8" W x 16" D x 8" H

Weight, Shipping: 18 lb

Dimensions, Shipping: 11" W x 20" D x 11" H

Package Type: SmallPackage

Fan Filter Units With Pre-Filters

  • Terra Universal WhisperFlow® Filter Fan Units Terra Universal WhisperFlow® Filter Fan Units
Terra Universal WhisperFlow® Filter Fan Units

Features and Benefits

Protect Against Contaminants and Pathogens

HEPA and ULPA filters help capture many bacteria, viruses (COVID-19), and mold spores that contribute to a host of infections for both humans and plant/animal tissue cultures

Long Running FFU Motors

Terra’s filter fan unit motors are rated for 5 years of continuous, 24/7 operation, if the HEPA filters are consistently replaced. To accurately monitor your HEPA filter’s saturation levels, purchase Terra’s audible and visual filter replacement alarm system.

Continuous Product Improvement

At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.

Comprehensive Product Portfolio

Terra’s comprehensive product portfolio includes solutions for every application and budget. Our technical sales staff will guide you toward the product most suitable for your requirements.

Long-Term Customers

Terra is committed to building long-term relationships with satisfied clients; 94% of orders each year come from repeat customers

Complete Project Transparency

Terra is dedicated to complete transparency on project status, shipment tracking, and installation scheduling
Manuals & Resources
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